Improvement in machine-made stitch



.. Patented M 1 A HARROU N, Jr Mabh ine Made Stitch.

Mix

PATENT OFFICE.

ALEXANDER HARROUN, JIt, OF ONONDAGA COUNTY, NEW YORK.

IMPROVEMENT IN MACHINE-MADE STOITCH.

Specification forming part of Letters Patent No. 90,045, dated May 11, 1869.

To all whom it may concern:

Be it known that I, ALEXANDER HARROUN, Jr., of the county of Onondaga and State of New York, have invented a new and Improved Machine Stitch for Button-Holes; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

My stitch is formed by combining, with the 'usual shuttle or look stitch, a third thread, as

follows: The letter a of the drawings refers to the clothin which a button-hole is to be made.

The letter b refers to the edge of the buttonhole. The. letter 0 refers to the shuttle-thread, drawn to the upper surface of the cloth. The letter 61 refers to the needle-thread. The letter 6 refers to the third thread. 7

I use but one needle in making my stitch, which I cause to reciprocate laterally, in such a manner that at one descent it will pass through the cloth at a suitable distance from the edge of the button-hole, and at the suc- V ceeding descent pass down within the buttonhole; or, if more convenient, I give the cloth a motion Which will answer the same purpose.

And between these two parallel lines in which the needle enters the cloth, and on the surface of the cloth, I cause the third thread to be laid,

in combination with the other threads, as shown.

To commence a stitch, the needle may be supposed to pass down through the cloth at the letter 10 of the drawings. After making the usual connection with the shuttle-thread it rises, and at the next descent it passes within the button-hole at g. Before the needle O descends a second time or within the; hole, a

loop of the third thread is thrown out in such a' manner that the needle will pass entirely over it. This loop is referred to by the letter h, I

and the places at which the needle thread crosses it are referred to by the letter 8.

Atthe next or third descent the needle .goes within this loop and through the cloth at the place referred to by the letter 17. Before the next or fourth descent of the needle, another loop is thrown out like the preceding one, after which the needle descends at j, and these mo tions are repeated as long as it is desired to make the stitch. At each descent of the needle the usual connection with the shuttlethread is made.

The needle-thread, in its passage from. within the button-hole to its connection with the shuttle-thread through the loop, as from g to "i, crosses the third thread once, and in passing from within the loop to within the buttonhole it crosses the third thread three times.

The machine for making the above-specified stitch may be found set forth and described in my application for a patent under date of March 19, 1868, in which the third thread is laid by means of a rotating reciprocating hook and certain holding-points.

I claim- The machine-made stitch herein described and shown, formed by the three threads 0 d e,

' Witnesses GEO. STANTON,

MAJOR Z. HASKINS. 

